Exercise device



FIG. 1 is a top, front, right side perspective view of an exercise device showing the present invention;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right side elevation view thereof; and,

FIG. 6 is a left side elevation view thereof.

It is understood that the short evenly dashed broken lines within the claimed design indicates stitch lines, which form part of the claim. 

CLAIM The ornamental design for exercise device, as shown and described. 